New to hobby

[Omar]

Hello, I am new to this hobby. My daughter wants a saltwater tank and I’m trying to make her wish come true. My tank has been up for 5-6 weeks now. I have two clown fish and this little guy right here. I recently noticed that he has been scratching on the sand and sometimes on the rock. Not sure what to make of it. Any ideas or suggestions would be appreciated. Thank you

 

[melosu58]

He might have ich. Usually flashing will mean that. Those Powder Blue tangs are ich magnets.Going to move this to SW sick fish forum. You'ii get better and more answers there.

 

[Sniperhank]

That is a very sick powder blue. They are very sensitive fish and difficult to keep. I've tried and have also been unsuccessful, compared to the other tangs in my system that don't seem to care what is going on with that fish.
What size of tank are we talking about here? What are the current parameters? Was the tank cycled? What kind of rock is in the system?...it doesn't look very porous and looks more like freshwater decoration pieces than actual live rock we use in our systems to house the beneficial bacteria for the nitrate cycle.